How to use Context method of NBi.Core.Variable.Context class

Best NBi code snippet using NBi.Core.Variable.Context.Context

ScalarResolverFactoryTest.cs

Source:ScalarResolverFactoryTest.cs

...33            var resolver = factory.Instantiate(args);34            Assert.That(resolver, Is.TypeOf<GlobalVariableScalarResolver<object>>());35        }36        [Test]37        public void Instantiate_ContextArgs_ContextResolver()38        {39            using (var dt = new DataTable())40            {41                var context = Context.None;42                context.Switch(dt.NewRow());43                var args = new ContextScalarResolverArgs(context, new ColumnOrdinalIdentifier(0));44                var factory = new ScalarResolverFactory(null);45                var resolver = factory.Instantiate(args);46                Assert.That(resolver, Is.TypeOf<ContextScalarResolver<object>>());47            }48        }49        [Test]50        public void Instantiate_QueryArgs_QueryResolver()51        {52            var args = new QueryScalarResolverArgs(new EmbeddedQueryResolverArgs("select * from table;", "connStr", null, null, new TimeSpan()));53            var factory = new ScalarResolverFactory(null);54            var resolver = factory.Instantiate(args);55            Assert.That(resolver, Is.TypeOf<QueryScalarResolver<object>>());56        }57        [Test]58        public void Instantiate_ProjectionResultSetArgs_ProjectionResultSetResolver()59        {60            var args = new RowCountResultSetScalarResolverArgs(new ResultSetResolverArgs());61            var stub = new Mock<ServiceLocator>();62            stub.Setup(x => x.GetResultSetResolverFactory()).Returns(new ResultSetResolverFactory(stub.Object));63            var factory = new ScalarResolverFactory(stub.Object);64            var resolver = factory.Instantiate(args);65            Assert.That(resolver, Is.TypeOf<ProjectionResultSetScalarResolver<object>>());66        }67        [Test]68        public void Instantiate_CSharpArgs_CSharpResolver()69        {70            var args = new CSharpScalarResolverArgs("DateTime.Now.Year");71            var factory = new ScalarResolverFactory(null);72            var resolver = factory.Instantiate(args);73            Assert.That(resolver, Is.TypeOf<CSharpScalarResolver<object>>());74        }75        [Test]76        public void Instantiate_EnvironmentArgs_EnvironmentResolver()77        {78            var args = new EnvironmentScalarResolverArgs("myVar");79            var factory = new ScalarResolverFactory(null);80            var resolver = factory.Instantiate(args);81            Assert.That(resolver, Is.TypeOf<EnvironmentScalarResolver<object>>());82        }83        [Test]84        public void Instantiate_FormatArgs_FormatResolver()85        {86            var args = new FormatScalarResolverArgs("myVar", new Dictionary<string, IVariable>());87            var factory = new ScalarResolverFactory(null);88            var resolver = factory.Instantiate<string>(args);89            Assert.That(resolver, Is.TypeOf<FormatScalarResolver>());90        }91        [Test]92        public void InstantiateNeutral_FormatArgs_FormatResolver()93        {94            var args = new FormatScalarResolverArgs("myVar", new Dictionary<string, IVariable>());95            var factory = new ScalarResolverFactory(null);96            var resolver = factory.Instantiate(args);97            Assert.That(resolver, Is.TypeOf<FormatScalarResolver>());98        }99        [Test]100        public void InstantiateNotString_FormatArgs_FormatResolver()101        {102            var args = new FormatScalarResolverArgs("myVar", new Dictionary<string, IVariable>());103            var factory = new ScalarResolverFactory(null);104            var ex = Assert.Throws<ArgumentException>(() => factory.Instantiate<object>(args));105        }106        [Test]107        public void Instantiate_FunctionArgs_FunctionResolver()108        {109            var args = new FunctionScalarResolverArgs(new LiteralScalarResolver<string>("myVar"), new INativeTransformation[] { });110            var factory = new ScalarResolverFactory(null);111            var resolver = factory.Instantiate(args);112            Assert.That(resolver, Is.TypeOf<FunctionScalarResolver<object>>());113        }114        [Test]115        public void Instantiate_NCalcArgs_NcalcResolver()116        {117            var context = new Context(null);118            var args = new NCalcScalarResolverArgs("a * b - 2", context);119            var factory = new ScalarResolverFactory(null);120            var resolver = factory.Instantiate(args);121            Assert.That(resolver, Is.TypeOf<NCalcScalarResolver<object>>());122        }123    }124}...

RowValueExtractor.cs

Source:RowValueExtractor.cs

...17    {18        private ServiceLocator ServiceLocator { get; }19        public RowValueExtractor(ServiceLocator serviceLocator)20            => (ServiceLocator) = (serviceLocator);21        public object Execute(Context context, IColumnIdentifier identifier)22        {23            if (identifier is ColumnOrdinalIdentifier)24            {25                var ordinal = (identifier as ColumnOrdinalIdentifier).Ordinal;26                if (ordinal <= context.CurrentRow.Table.Columns.Count)27                    return context.CurrentRow.ItemArray[ordinal];28                else29                    throw new ArgumentException($"The variable of the predicate is identified as '{identifier.Label}' but the column in position '{ordinal}' doesn't exist. The dataset only contains {context.CurrentRow.Table.Columns.Count} columns.");30            }31            var name = (identifier as ColumnNameIdentifier).Name;32            var alias = context.Aliases?.SingleOrDefault(x => string.Equals(x.Name, name, StringComparison.OrdinalIgnoreCase));33            if (alias != null)34                return context.CurrentRow.ItemArray[alias.Column];35            var expression = context.Expressions?.SingleOrDefault(x => string.Equals(x.Name, name, StringComparison.OrdinalIgnoreCase));36            if (expression != null)37            {38                var result = EvaluateExpression(expression, context);39                var expColumnName = $"exp::{name}";40                if (!context.CurrentRow.Table.Columns.Contains(expColumnName))41                {42                    var newColumn = new DataColumn(expColumnName, typeof(object));43                    context.CurrentRow.Table.Columns.Add(newColumn);44                }45                context.CurrentRow[expColumnName] = result;46                return result;47            }48            var column = context.CurrentRow.Table.Columns.Cast<DataColumn>().SingleOrDefault(x => string.Equals(x.ColumnName, name, StringComparison.OrdinalIgnoreCase));49            if (column != null)50                return context.CurrentRow[column.ColumnName];51            var existingNames = context.CurrentRow.Table.Columns.Cast<DataColumn>().Select(x => x.ColumnName)52                .Union(context.Aliases.Select(x => x.Name)53                .Union(context.Expressions.Select(x => x.Name)));54            throw new ArgumentException($"The value '{name}' is not recognized as a column position, a column name, a column alias or an expression. Possible arguments are: '{string.Join("', '", existingNames.ToArray())}'");55        }56        protected object EvaluateExpression(IColumnExpression expression, Context context)57        {58            if (expression.Language == LanguageType.NCalc)59            {60                var exp = new NCalc.Expression(expression.Value);61                var factory = new ColumnIdentifierFactory();62                exp.EvaluateParameter += delegate (string name, NCalc.ParameterArgs args)63                {64                    args.Result = name.StartsWith("@")65                        ? context.Variables[name.Substring(1, name.Length-1)].GetValue()66                        : Execute(context, factory.Instantiate(name));67                };68                return exp.Evaluate();69            }70            else if (expression.Language == LanguageType.Native)...

ContextScalarResolver.cs

Source:ContextScalarResolver.cs

...8using System.Text;9using System.Threading.Tasks;10namespace NBi.Core.Scalar.Resolver11{12    class ContextScalarResolver<T> : IScalarResolver<T>13    {14        private Context Context { get; }15        private IColumnIdentifier ColumnIdentifier { get; }16        public ContextScalarResolver(ContextScalarResolverArgs args)17            => (Context, ColumnIdentifier) = (args.Context, args.ColumnIdentifier);18        internal ContextScalarResolver(Context context, IColumnIdentifier columnIdentifier)19            => (Context, ColumnIdentifier) = (context, columnIdentifier);20        public T Execute()21        {22            var evaluation = Context.CurrentRow.GetValue(ColumnIdentifier);23            var typedEvaluation = StrongTypingVariable(evaluation);24            return (T)typedEvaluation;25        }26        object IResolver.Execute() => Execute();27        private static object StrongTypingVariable(object input)28        {29            IFormatProvider formatProvider = typeof(T) == typeof(DateTime)30                ? (IFormatProvider)System.Globalization.DateTimeFormatInfo.InvariantInfo31                : System.Globalization.NumberFormatInfo.InvariantInfo;32            if (input != null && input.ToString().EndsWith("%"))33                input = input.ToString().Substring(0, input.ToString().Length - 1);34            var output = Convert.ChangeType(input, typeof(T), formatProvider);35            return output;36        }...

Context

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using NBi.Core.Variable;7{8    {9        static void Main(string[] args)10        {11            var context = new Context();12            context.Add("a", "b");13            context.Add("c", "d");14            context.Add("e", "f");15            var result = context.Get("a");16            Console.WriteLine(result);17            Console.ReadKey();18        }19    }20}

Context

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using NBi.Core.Variable;7{8    {9        static void Main(string[] args)10        {11            Context context = new Context();12            context.Add("var1", "value1");13            context.Add("var2", "value2");14            context.Add("var3", "value3");15            string value = context.Get("var1");16            Console.WriteLine(value);17            Console.ReadKey();18        }19    }20}

Context

Using AI Code Generation

1var context = new NBi.Core.Variable.Context();2context.Add("var1", "value1");3context.Add("var2", "value2");4context.Add("var3", "value3");5context.Add("var4", "value4");6context.Add("var5", "value5");7context.Add("var6", "value6");8context.Add("var7", "value7");9context.Add("var8", "value8");10context.Add("var9", "value9");11context.Add("var10", "value10");12context.Add("var11", "value11");13context.Add("var12", "value12");14context.Add("var13", "value13");15context.Add("var14", "value14");16context.Add("var15", "value15");17context.Add("var16", "value16");18context.Add("var17", "value17");19context.Add("var18", "value18");20context.Add("var19", "value19");21context.Add("var20", "value20");22context.Add("var21", "value21");23context.Add("var22", "value22");24context.Add("var23", "value23");25context.Add("var24", "value24");26context.Add("var25", "value25");27context.Add("var26", "value26");28context.Add("var27", "value27");29context.Add("var28", "value28");30context.Add("var29", "value29");31context.Add("var30", "value30");32context.Add("var31", "value31");33context.Add("var32", "value32");34context.Add("var33", "value33");35context.Add("var34", "value34");36context.Add("var35", "value35");37context.Add("var36", "value36");38context.Add("var37", "value37");39context.Add("var38", "value38");40context.Add("var39", "value39");41context.Add("var40", "value40");42context.Add("var41", "value41");43context.Add("var42", "value42");44context.Add("var43", "value43");45context.Add("var44", "value44");46context.Add("var45", "value45");47context.Add("var46", "value46");48context.Add("var47", "value47");49context.Add("var48", "value48");50context.Add("var49", "value

Context

Using AI Code Generation

1using NBi.Core.Variable;2{3    static void Main(string[] args)4    {5        var context = new Context();6        context.Add("name", "John");7        context.Add("surname", "Doe");8        context.Add("age", 42);9        var name = context.Get<string>("name");10        var surname = context.Get<string>("surname");11        var age = context.Get<int>("age");12        Console.WriteLine($"Name: {name}");13        Console.WriteLine($"Surname: {surname}");14        Console.WriteLine($"Age: {age}");15    }16}17using NBi.Core.Variable;18{19    static void Main(string[] args)20    {21        var context = new Context();22        context.Add("name", "John");23        context.Add("surname", "Doe");24        context.Add("age", 42);25        var name = context.Get<string>("name");26        var surname = context.Get<string>("surname");27        var age = context.Get<int>("age");28        Console.WriteLine($"Name: {name}");29        Console.WriteLine($"Surname: {surname}");30        Console.WriteLine($"Age: {age}");31    }32}33using NBi.Core.Variable;34{35    static void Main(string[] args)36    {37        var context = new Context();38        context.Add("name", "John");39        context.Add("surname", "Doe");40        context.Add("age", 42);41        var name = context.Get<string>("name");42        var surname = context.Get<string>("surname");43        var age = context.Get<int>("age");44        Console.WriteLine($"Name: {name}");45        Console.WriteLine($"Surname: {surname}");46        Console.WriteLine($"Age: {age}");47    }48}49using NBi.Core.Variable;50{51    static void Main(string[] args)52    {53        var context = new Context();54        context.Add("name", "John");55        context.Add("surname", "Doe");56        context.Add("age", 42);57        var name = context.Get<string>("name");58        var surname = context.Get<string>("surname");59        var age = context.Get<int>("age");60        Console.WriteLine($"Name

Context

Using AI Code Generation

1var context = new NBi.Core.Variable.Context();2var value = context.Get("myVariable");3var context = new NBi.Core.Variable.Context();4var value = context.Get("myVariable");5var context = new NBi.Core.Variable.Context();6var value = context.Get("myVariable");7var context = new NBi.Core.Variable.Context();8var value = context.Get("myVariable");9var context = new NBi.Core.Variable.Context();10var value = context.Get("myVariable");11var context = new NBi.Core.Variable.Context();12var value = context.Get("myVariable");13var context = new NBi.Core.Variable.Context();14var value = context.Get("myVariable");15var context = new NBi.Core.Variable.Context();16var value = context.Get("myVariable");17var context = new NBi.Core.Variable.Context();18var value = context.Get("myVariable");19var context = new NBi.Core.Variable.Context();20var value = context.Get("myVariable");

Context

Using AI Code Generation

1using NBi.Core.Variable;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            Context context = new Context();12            string value = context.Get("variable1");13            Console.WriteLine(value);14        }15    }16}

Context

Using AI Code Generation

1var context = new Context();2var expected = context.Get("string");3var context = new NBi.Core.Variable.Context();4var expected = context.Get("string");5var context = new Context();6var expected = context.Get("string");7var context = new NBi.Core.Variable.Context();8var expected = context.Get("string");9Name Description {guid} A GUID (Globally Unique Identifier) value. {random} A random integer value. {today} The current date. {now} The current date and time. {tomorrow} The date of tomorrow. {yesterday} The date of yesterday. {today+1d} The date of the day after tomorrow. {today-1d} The date of the day before yesterday. {today+1m} The date of next month. {today-1m} The date of previous month. {today+1y} The date of next year. {today-1y} The date of previous year. {today+1w} The date of next week. {today-1w} The date of previous week. {today+2w} The date of the week after next. {today-2w} The date of the week before previous. {today+3w} The date of the week after after next. {today-3w} The date of the week before before previous. {today+4w} The date of the week after after after next. {today-4w} The date of the week before before before previous. {today+5w} The date of the week after after after after next. {today-5w} The date of the week before before

Context

Using AI Code Generation

1using NBi.Core.Variable;2string str = Context.Get("myVar");3using NBi.Core.Variable;4string str = Context.Get("myVar");5using NBi.Core.Variable;6string str = Context.Get("myVar");

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